de

BiBTeX

@article{58089,
author = {Hackbusch, Wolfgang},
title = {{Fast solution of elliptic control problems}},
doi = {10.1007/BF00934478},
journal = {Journal of optimization theory and applications},
pages = {565--581},
year = {1980},
volume = {31},
number = {4},
issn = {0022-3239},
institution = {{Max Planck Institute for Mathematics in the Sciences}},
}